【react-native】0.57版本打包报错：Could not resolve all files for configuration ':app:releaseCompileClasspath

react-native版本：0.57.1

这个问题原本不是rn版本的问题，原因是0.57.1将Android SDK的版本更新到27了。

先来看下错误日志： 

> Task :app:preReleaseBuild FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':app:releaseCompileClasspath'.
> Could not find support-vector-drawable.aar (com.android.support:support-vector-drawable:27.1.1).
  Searched in the following locations:
      https://jcenter.bintray.com/com/android/support/support-vector-drawable/27.1.1/support-vector-drawable-27.1.1.aar
> Could not find livedata-core.aar (android.arch.lifecycle:livedata-core:1.1.0).
  Searched in the following locations:
      https://jcenter.bintray.com/android/arch/lifecycle/livedata-core/1.1.0/livedata-core-1.1.0.aar
> Could not find viewmodel.aar (android.arch.lifecycle:viewmodel:1.1.0).
  Searched in the following locations:
      https://jcenter.bintray.com/android/arch/lifecycle/viewmodel/1.1.0/viewmodel-1.1.0.aar
> Could not find runtime.aar (android.arch.core:runtime:1.1.0).
  Searched in the following locations:
      https://jcenter.bintray.com/android/arch/core/runtime/1.1.0/runtime-1.1.0.aar

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.10.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 14s
11 actionable tasks: 1 executed, 10 up-to-date

这个是只有打包apk时才会出现的错误，需要注意两个地方来确定你的错误和我遇到的是同一类错误：

1.":app:releaseCompileClasspath"；

2."com.android.support:support-vector-drawable:27.1.1"。

解决方案： 

1.修改android/build.gradle中google()方法的位置，见下方代码注释；

2.如果还不行，就升级gradle版本到4.10.1（我使用的版本，不确定别的版本是否可用）。

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext {
        buildToolsVersion = "27.0.3"
        minSdkVersion = 16
        compileSdkVersion = 27
        targetSdkVersion = 26
        supportLibVersion = "27.1.1"
    }
    repositories {
        google()
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.4'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google() // new
        mavenLocal()
        jcenter()
        maven {url "https://jitpack.io"}
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
        }
        maven {url "https://maven.google.com"}
        // google() // old
    }
}


task wrapper(type: Wrapper) {
    gradleVersion = '4.10.1'
    distributionUrl = distributionUrl.replace("bin", "all")
}